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Articles 8851 - 8880 of 10253
Full-Text Articles in Entire DC Network
Multiple Use Systems For Aquaculture, J. M. Henderson, R. A. Heckmann, R. N. Winget
Multiple Use Systems For Aquaculture, J. M. Henderson, R. A. Heckmann, R. N. Winget
Great Basin Naturalist
Two recirculating aquaculture systems were constructed using a sequence of five tanks each. Each system contained two plant species, duckweed (Lemna minor) and Chinese water chestnut (Eleocharis dulcis); two fish species, channel catfish (Ictalurus punctatus) and tilapia (Tilapia aurea); and a freshwater prawn (Macrobrachium rosenbergii). Duckweed production during the 132-day experiment reached as high as 87.2 tons/hectare/year (t/ha/yr). Water chestnut production was not successful in the restricted light situation of the lab, but in an outdoor test planting, corn production was 37.2 t/ha/yr. Four feeding trials were attempted using the …
Burrow Plugging By Prairie Dogs In Response To Siberian Polecats, Stephen J. Martin, Max H. Schroeder, Howard Tietjen
Burrow Plugging By Prairie Dogs In Response To Siberian Polecats, Stephen J. Martin, Max H. Schroeder, Howard Tietjen
Great Basin Naturalist
Siberian polecats (Mustela eversmanni) were placed in white-tailed prairie dog (Cynomys leucurus) and black-tailed prairie dog (C. ludovicianus) burrows to simulate a black-footed ferret (M. nigripes) visit. Both prairie dog species plugged burrows "visited" by polecats. White-tailed and black-tailed prairie dogs plugged 2 of 6 and 3 of 6 test burrows, respectively.
Burrowing And Denning Habits Of A Captive Colony Of The Utah Prairie Dog, Harold J. Egoscue, Elizabeth S. Frank
Burrowing And Denning Habits Of A Captive Colony Of The Utah Prairie Dog, Harold J. Egoscue, Elizabeth S. Frank
Great Basin Naturalist
Burrows, hibernaculums, and nests of an exhibit colony of the Utah prairie dog, Cynomys parvidens, are described.
Mule Deer Passage Beneath An Overland Coal Conveyer, Charles L. Greenwood, Larry B. Dalton
Mule Deer Passage Beneath An Overland Coal Conveyer, Charles L. Greenwood, Larry B. Dalton
Great Basin Naturalist
Presently, information pertaining to migration and daily movement patterns of big game in relation to overland conveyors or large diameter pipelines is sparse. A literature review showed that moose (Alces alces), caribou (Rangifer tarandus granti), reindeer, and dall sheep (Ovis dalli dalli) will pass beneath or over large diameter pipeline systems. But no information was found relative to big game crossing coal conveyor systems. Mule deer (Odocoileus hemionus) passage beneath an overland coal conveyor in Carbon County, Utah, was studied during spring 1981. Deer avoided crossing at underpass opportunities where the clearance …
Genetics Of Hybridization Between The Pocket Gophers Thomomys Bottae And Thomomys Townsendii In Northeastern California, James L. Patton, Margaret F. Smith, Roger D. Price, Ronald A. Hellenthal
Genetics Of Hybridization Between The Pocket Gophers Thomomys Bottae And Thomomys Townsendii In Northeastern California, James L. Patton, Margaret F. Smith, Roger D. Price, Ronald A. Hellenthal
Great Basin Naturalist
Hybridization between the pocket gophers Thomomys bottae and T. townsendii at Gold Run Creek in Honey Lake Valley, Lassen County, California, is examined by electromorphic and morphologic characters and by the distribution of ectoparasitic mallophagan lice. Hybrid formation is minimal (about 12% of the total sample of 104 individuals examined), but both F1 hybrids and a few presumptive backcross individuals are apparent. Nevertheless, no evidence of genic introgression based on five diagnostic allozyme loci is present in parental populations of either taxon within a mile of the hybrid zone. Similarly, louse species unique to each parental gopher host do …
On The North Side Of The Platte, Sally T. Taylor
Cultural Conflict: Mormons And Indians In Nebraska, Lawrence G. Coates
Cultural Conflict: Mormons And Indians In Nebraska, Lawrence G. Coates
BYU Studies
No abstract provided.
Full Issue, Byu Studies
The Iowa Journal Of Lorenzo Snow, Maureen Ursenbach Beecher
The Iowa Journal Of Lorenzo Snow, Maureen Ursenbach Beecher
BYU Studies
No abstract provided.
Mormon Trail Network In Nebraska, 1846-1868: A New Look, Stanley B. Kimball
Mormon Trail Network In Nebraska, 1846-1868: A New Look, Stanley B. Kimball
BYU Studies
No abstract provided.
The Great Florence Fitout Of 1861, William G. Hartley
The Great Florence Fitout Of 1861, William G. Hartley
BYU Studies
No abstract provided.
Naturalization And Habitat Relationships Of Bitter Nightshade (Solanum Dulcamara) In Central Utah, Jack D. Brotherson, Kevin P. Price
Naturalization And Habitat Relationships Of Bitter Nightshade (Solanum Dulcamara) In Central Utah, Jack D. Brotherson, Kevin P. Price
Great Basin Naturalist
Ten plant communities containing bitter nightshade (Solanum dulcamara) were studied and the ecology and naturalizing relationships of bitter nightshade in central Utah area were investigated. Biotic and abiotic factors from each area were statistically analyzed. The data indicated that bitter nightshade was negatively correlated (P < 0.01) with perennial grass cover and positively correlated with tree overstory. Bitter nightshade reached its highest development in heavily shaded areas. No other habitat factors correlated with the presence of bitter nightshade. This lack of environmental constraints along with bitter nightshade's bright red fruits, which are readily consumed by birds, suggests possible reasons for the rapid and successful invasion of the plant into the Utah Lake area.
Ecological Studies Of A Regulated Stream: Huntington River, Emery County, Utah, Robert N. Winget
Ecological Studies Of A Regulated Stream: Huntington River, Emery County, Utah, Robert N. Winget
Great Basin Naturalist
A 36.9 × 106 m3 reservoir constructed on Huntington River, Emery County, Utah, resulted in changes in physical habitat, water quality, temperature, and flow regime. The greatest changes in physical habitat resulted from: (1) sediment additions from dam and road construction plus erosion of reservoir basin during filling; and (2) changing stream flow from a spring high runoff regime to a moderated flow regime. Elimination of spring nutrient concentration peaks and overall reduction of total dissolved nutrient availability in the river plus moderate reductions in pH were the most apparent water quality changes below the reservoir. Water temperature …
Distribution Of The Shoshone Scuplin (Cottus Greenei: Cottidae) In The Hagerman Valley Of South Central Idaho, Richard L. Wallace, J. S. Griffith Jr., D. M. Daley, Patrick J. Connolly, G. B. Beckham
Distribution Of The Shoshone Scuplin (Cottus Greenei: Cottidae) In The Hagerman Valley Of South Central Idaho, Richard L. Wallace, J. S. Griffith Jr., D. M. Daley, Patrick J. Connolly, G. B. Beckham
Great Basin Naturalist
Cottus greenei, a potentially threatened species endemic to Idaho, was collected from 49 localities in 25 springs/streams in south central Idaho. Most localities were along the north bank of the Snake River in waters of the Thousand Springs formation, Gooding County. One population was found in a spring in the main Snake River. Another sculpin, Cottus bairdi, was collected with C. greenei at 23 locations in 16 springs/streams. Confusion concerning the type locality of Cottus greenei is discussed.>
Utah Flora: Chenopodiaceae, Stanley L. Welsh
Utah Flora: Chenopodiaceae, Stanley L. Welsh
Great Basin Naturalist
The Chenopodiaceae for Utah are revised. Descriptions of the family and of its genera and species are included. Keys to the genera, species, and infraspecific taxa are provided, along with pertinent discussion. Treated are 18 genera, 56 species, and 13 infraspecific taxa. Newly described taxa are Atriplex canescens (Pursh) Nutt. var. gigantea Welsh & Stutz, Ceratoides lanata (Pursh) J. T. Howell var. ruinina Welsh, and Chenopodium capitatum (L.) Asch. var. parvicapitatum Welsh. New nomenclatural combinations are: Atriplex canescens (Pursh) Nutt. var. occidentalis (Torr. & Frem.) Welsh & Stutz; Atriplex gardneri (Moq.) D. Dietr.—var. bonnevillensis (C. A. Hanson) Welsh, var. cuneata …
Bristlecone Pine And Clark's Nutcracker: Probable Interaction In The White Mountains, California, Ronald M. Lanner, Harry E. Hutchins, Harriette A. Lanner
Bristlecone Pine And Clark's Nutcracker: Probable Interaction In The White Mountains, California, Ronald M. Lanner, Harry E. Hutchins, Harriette A. Lanner
Great Basin Naturalist
Many bristlecone pines in the White Mountains, California, are members of multistem clumps. We propose that these clumps have arisen by multiple germinations from seed caches of Clark's Nutcracker, as occurs in several other pine species. The commonness of nutcrackers and their caching of singleleaf pinyon seeds in the study area provide supporting evidence. Other vertebrates appear unlikely to be responsible for the stem clumps. Seed burial may be required to establish regeneration on these adverse sites where bristlecone pine attains great longevity.
In Memoriam: Seville Flowers (1900–1968), William H. Behle
In Memoriam: Seville Flowers (1900–1968), William H. Behle
Great Basin Naturalist
Seville Flowers was the foremost authority of his time on cryptogamic botany in the intermountain region, having published monographs on the mosses, lichens, and ferns of Utah. He also had strong interests in algae, grasses, composites, and the history of botany. In addition to his systematic research, his expertise extended to field ecology. Early in his career he made a classic study of the vegetation of the Great Salt Lake region that led in later years to his participation in the ecological studies at Dugway Proving Grounds in western Utah. Still later he had charge of the predam vegetative surveys …
Reflections From The Ganges, Thomas F. Rogers
Making A Mormon Of Milton, John S. Tanner
Mormon Bibliography 1983, Scott H. Duvall, Barbara S. Ballantyne
Mormon Bibliography 1983, Scott H. Duvall, Barbara S. Ballantyne
BYU Studies
No abstract provided.
The Magic And Mundanity: Eileen Kump's Bread And Milk And Other Stories, Gloria L. Cronin
The Magic And Mundanity: Eileen Kump's Bread And Milk And Other Stories, Gloria L. Cronin
BYU Studies
No abstract provided.
The Treaty/Covenant Pattern In King Benjamin's Address (Mosiah 1-6), Stephen D. Ricks
The Treaty/Covenant Pattern In King Benjamin's Address (Mosiah 1-6), Stephen D. Ricks
BYU Studies
No abstract provided.
Front Matter, Deseret Language And Linguistics Society
Front Matter, Deseret Language And Linguistics Society
Deseret Language and Linguistic Society Symposium
No abstract provided.
Full Issue, Deseret Language And Linguistics Society
Full Issue, Deseret Language And Linguistics Society
Deseret Language and Linguistic Society Symposium
No abstract provided.
Bickerton's Bioprogram Theory: Its Basis And Implications In Acquisition Theory, Laura Henrie
Bickerton's Bioprogram Theory: Its Basis And Implications In Acquisition Theory, Laura Henrie
Deseret Language and Linguistic Society Symposium
No abstract provided.
Distribution Of Shore Bugs And Shore Flies At Sylvan Springs, Yellowstone National Park, Vincent H. Resh, Mark A. Barnby
Distribution Of Shore Bugs And Shore Flies At Sylvan Springs, Yellowstone National Park, Vincent H. Resh, Mark A. Barnby
Great Basin Naturalist
Three species of shore bugs (Hemiptera: Saldidae) and 10 species of brine flies (Diptera: Ephydridae) were collected at Sylvan Springs (Wyoming section of Yellowstone National Park, USA), an area containing both acid and alkaline thermal springs. The fauna consists of both widespread (e.g., shore bugs Saldula comatula Parshley and Saldula explanata [Uhler] and shore flies Atissa litoralis [Cole] and Scatella stagnalis [Fallén]) and Yellowstone Park–endemic species (e.g., Saldula nr. arenicola and the shore fly Ephydra thermophila Cresson). The ratio of adults to nymphs of the numerically dominant shore bug Saldula nr. arenicola is higher along heated margins (11–12:1) than along …
Summer Food Habits Of A Small Mammal Community In The Pinyon-Juniper Ecosystem, Jonathan B. Haufler, Julius G. Nagy
Summer Food Habits Of A Small Mammal Community In The Pinyon-Juniper Ecosystem, Jonathan B. Haufler, Julius G. Nagy
Great Basin Naturalist
Summer food habits of a small mammal community in the Piceance Basin of Colorado were investigated during 1977 and 1978 using a combination of fecal and stomach content analyses. Three species, deer mice (Peromyscus maniculatus), least chipmunks (Eutamias minimus), and plains pocket mice (Perognathus flavescens) consumed arthropods as the majority of their diets. Bushy-tailed woodrats (Neotoma cinerea) consumed predominantly woody vegetation, and the diet of golden-mantled ground squirrels (Spermophilus lateralis) consisted primarily of forbs and fungi. Mountain cottontails (Sylvilagus nuttalli) depended heavily on grasses, with a mix of …
Fat Depth At The Xiphoid Process—A Rapid Index To Deer Condition, Dennis D. Austin
Fat Depth At The Xiphoid Process—A Rapid Index To Deer Condition, Dennis D. Austin
Great Basin Naturalist
Measurement of the fat depth adjacent to the xiphoid process is described for mule deer. The index was determined sensitive to changes in physical condition of hunter-harvested mule deer.